Lubricator.



PATENTED JULY 8, 1906.

L. D. PIGKBTT,

LUBRIGATOR.

APPLICATION FILED SBPT.14,1905.

Atium ey's uh huh ererue LESTER naiuus PIGKETT, or rRanoNiA, NEW YORK.

' Lusaicarosa.

Specification of Letters Patent.

Patented July a, 1906.

Application filed September 1 1', 1905. Serial llo. 278,465.

vide a lubricator wherein the quantity 0 bricant supplied to the engine is determined by the s eed of the engine.

A stil further object of provide a suction-feed lubricator in which the lubricant is sup lied in measured quantities at the point 0 delivery, such quantity, proportioned to the speed of the engine, being drawn into the casing on the outstroke of the piston.

' A still further object of the invention is to rovide' a lubricator in which a lubrican ieed chamber is connected to the engine and communication established with the casing oisaid engine on the outstroke and to employ means for supplying tosaid feed-chamber a predetermined quantit of oil, the feedchamber being emptie on .each outstroke and re lenished between such strokes.

Wit these andother objects in view, as

will more fully hereinafter appear, the invention consists in certain novel features of construction and arran ement of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size,--, and minor details of the structure may be made without departing from the spirit or sacrificing any of the ad-;.

vanta es 0 the invention.

In t e accompanying drawings, Figure 1 is a side elevation of a lubricator constructed in accordance with the invention, showin the same attached to the engine of-amotor-bicycle. vFig. 2 is a side elevation of the lubricator, drawn to an enlarged scale. Fig. 3 is a vertical longitudinal section of the lubricator. -Fig. 4 is a sectional plan view of the same on the line 4 4 of Fig. 2. Fig. 5 is a verthe invention is to tical sectional view taken at right angles to the plane in which Fig. 3 is taken;

Similar characters of reference are employed to indicate correspondin parts throughout the several figures of the rawings.

In the majority of internal-combustion en gines so-called splash-feed lubricators are employed within the crank-casing but these in many cases are not to be relied upon, espec ally when the engine is traveling at very %]l speed, and supplemental suction-feed ricators have been employed, the casing of the engine being connected to a lubricantreservcir in such manner as to draw oil into the casing during the outstroke ;'but in such devices no provision has heretofore been made for regulating the cuantity of oil fed, and this results in consi erable waste and necessitates the frequent refilling oi the lubricant-reservoir. 1

In carrying out the present invention pair of lubricant-chambers 10 and 11 is employed, the upper chamber constituting a reservoir for supplyin predetermined quantities of lubricant to t' e lower or feed chamber 11. The upper chamber is connected by a supply-tube 12 to a main reservoir 13, arranged at a suitable elevation, so that the reservoir 10 may be sup lied.

The body portion of t e l-ubricator includes a hollow cylindrical stem 15, at the center of which is an annular flange 16, forming a division-plate between the lubricant-chambers 10 and 11, and at the edges of this partition are flanges 17 ,that serve as retaining devices for the walls of the chambers 10 and 11, these being preferably in the form of short sections of glass tubing. Packing-strips 18 form seats for the tubes and prevent the escape of oil. Mounted on the upper end of the spindle isa disk 19, having a peri heral flange 20, that embraces the upper e ge of the tube 10, va

. packing' iingQl being also introduced at this point, and projectin from the disk is a hipple 22 towhich the ower end of the supplytube 12 is coupled. This disk is further provided with a threaded opening for the reception of a screw 28, which may be 1 osened or 'withdrawn to allow thee scape of ir during the entrance of oil to the upper or reservoir chamber of the lubricator. The disk is held in place by a nut 24, adapted to the threaded upper end of the spindle 15, a suitable packing-ring 26 and washer 27 being placed between the nut and the top of the disk to prevent leakage of the oil around the spindle. On top of the threaded portion of the spindle is mounted a cap-nut 29, which may be removed when necessary.

At the lower portion of the cup is arranged a disk 30, having an annular flange 31- for the purpose of retaining the lower end of the tubular wall of the feed-chamber 11. A packing-ring 3 2 is also placed at this point to prevent leakage.

The lower disk is held in place by a coup ling-sleeve 34, that is screwed onto the lower threaded end of the hollow spindle, a packing-ring 35 and washer 36 being introduced between the collar and the disk. The lower end of the collar is reduced in diameter and provided with peripheral threads in order that it maybe screwed into a threaded opening formed in the cylinder.

The lower end of the spindle 15 is faced to form a tapered. valve-seat 36, arranged for the reception of a Valve 37, that is supported by a rod 38, extending through the bore of the spindle, and at the upper end of the rod is a threaded nut 39, between which and a seat at .the head of the spindle is arranged a helical conipression-spring 40, which exerts its force to keep the valve closed. T he valve opens' under a partial vacuum created within the casing during the outstroke, and the resistance to the opening movement may he adjusted by turning the nut 39. i

In the lower portion of the Wall of the spindle is an inclined port 43 for placing the lower portion of the teed-chamber 11 in communication with the interior of the spindle, and each time the valve 37 is opened on the outstrokc any oil contained within the chamber 11 will be sucked into the casing. ()n the suction and explosion strokes the valve will be closed.

Extending through the partition 16 is a port 45., through which oil may flow fromthe reservoir 10 to the feed-chamber 11, the oil dropping from a small teat 4.6 on the lower side of the partition. In this port is arranged a ported valve 47, which may be turned to control the e'l'l'ective area of thr port, and thus regulate the quantity of oil passing during a given period of time from the reservoir to the feedchamber. The outer end of the valve-stem projects beyond the partition and is provided with a rockcnarm 48, that is held in place by a set-screw 49. The outer end of this arm is'providcd with an extensible portion 50, having a slot 51 for the passage of a screw 52 for locking the extei'isiblc portion of the arm in adjusted position, so that the arm may be made Oil any desired length in order to accommodate the adjustments of other portions of the mechanism to which said arm is connected, and said arm may be ad usted independently or may be connected to other portions of the engine in accordance with the type of engine on which it is employed.

The partition 16 is further provided with a port under the control of a hollow valve 55, that projects beyond the peri 'ihery of the flange and is provided with a suitable handle 56. This valve will remain in open position during the operation of the engine in order to :dmit atmospl'ieric air to the feed-chamber; andthus break the vacuum within the shank her during the ou tstro kc oi the piston. It will also operate to permit the escape of any cor prpssed air or gas that may enter the feedchamber in the event of the slow closingof the valve 37, the principal object being to maintain the space within the chamber 11 a t atmospheric pressure.

in the operation of the device as thus described oil will flow drop by drop or in a very small stream through the valved port to the teed-chamber 15, accumulating in said feed-chamber between the outstrokes of the piston, and the valve is so adjusted as to accurately determine the quantity of oil passing, so that the proper amount may be supplied in accordance with the speed and. size of the er.- gine. opened and the whole quantity of oil within the feed-chamber is drawn into the casing. 011 the explosion and suction strokes the valve is closed, and another quantity of oil accumulates within the teed-chamber in readiness for the next outstroke. The speed of the engine is the principal factor for deter mining the (pi an tity of in bricant required and in practicaly all engines of this type provision is made for advancing the spark in order to increase the speed, aspark-timingmechanism of any type being employed for the purpose. ln the present instance the spark- -timing device includes an adjustable contactcarrier a, having an arm I), that is connected to a lever c, pivoted on theseat-post of the bicycle-frame, and this lever connected to any suitable operating-handle withiiii convenient reach 01 the operator; B movinj' this handle the spark may be timed to eiiect increase or decrease in the speed of the engine. This lever c is connected to the valved arm 4-8 by means ofarod 57, the contraction hein g so arranged that as the sparkis advanced the effective area of the port 45 will he in creased, so that the quantity of oil flowing through the port will be greater, while the engine is running at high speed than while running at low speed. In this manner the quantity of oil supplied is determined by the speed of the engine. The arrangement may he such as to feed precisely the same quantities ol oil for each stroke of the engine, no

At each outstroke the valve 37 ceases in the couplin 34, thiscpening bein normally covered y a cap-piece 61, whic may he removed in order to permit the insertion of .the o1l.

After the engine has been cleaned by the kerosene-oil it is necessary to employ a rather large quantity of lubricating-oil in order to permit the proper working of the parts, and for this purpose the partition is provided with an additional port 63, having a suitable valve 64, which may be turned in order to allow oil to flow freely from the reservoir 10 to the lower chamber and then be sucked into the casing as the engine is turned over by hand, the parts being lubricated effectively before starting. This valve 64 is normally closed while the engine is operating.

It will be seen from the ioregding description that the improvements herein described, while simple in character, will be thoroughly efiicient for-the purposes designed and will result in an effective feeding of a predetermined quantity of lubricant to the part to he lubricated and will at the same time prevent waste.

While the lubricator of this invention is particularly adapted for use o on motor-bicycles, it is to be understood is at it may be used upon any other form of motor or engine where its use will be found of advantage.

Havin thus described the invention, what is claimed is 1. The combination with an internal-combustion engine, of a lubricator connected thereto, means for regulating the speed of the engine, and mechanism connected to the speed-regulating means for governing the quantity of lubricant fed from the lubricator at each stroke of the engine.

2. The combination with an internal-combustion engine, 'oi' a s eed-regulating means for the engine, and a ubricator connected to the speed-regulating means and adjustable therewith to increase the quantity of lubricant fed at each stroke of the piston as the speed of the engine increases, and to reduce t e quantity of lubricant fed at each stroke as the ,spee'd of the engine decreases.

3. The combination with an internal-combustionengine, of means for regulating the speed of the engine, a lub'ricant-rcservoir, a

feed-chamber in communication therewith, a valve connected. to the speed-regulating means and adjustable in accordance with the speed oi the engine to govern the rate oi flow of the lubricant from the reservoir to the chamber, and means for establishing commu nication between the chamber and the casing of the engine during the outstroke of the piston.

4. The combination with an internal-combustion engine, of a lubricator connected thereto, means for regulating the speed of the engine, and mechanism connected to the speed-regulating means for governing the quantity of lubricant fed from the lubricator.

5. The combination with an internal-combustion engine having a spark timer, of a lubricatmg device, and means connected to andadjustable with the spark-timer for regulating the quantity of lubricant passingto the engine.

6. In a lubricator, a pair of superposed chambers, the upper forming a reservoir, and the lower a feed-chamber, a pair of valved ports through which said chambers may be placed in communication with each other, an ad'usting mechanism connected to one of the valves, the second valve being manually adjustable to open or closed position, and a suetion-opened discharge-valve for permitting the flow of lubricant from the feed-chamber. 7. In a lubricator, a hollow spindle having an annular flan e arranged intermediate its ends, upper andTower cap members mounted .on the s indie, tubular casings extending between t e flange and the cap members and forming superposed chambers, one constituting an oil-reservoir and the other a fecd-chamher, there being a valved port extending through the flange, and a port extending from the lower chamber to the interior of the hollow spindle, the lower end of said spindle being arranged te -form a valve-seat, a valve adapted to said seat, a rod extending through the spindle, a spring acting on said rod, and tending to close the valve, and means for connecting the upper chamber to a main lubricantreservoir.

8. In a lubricator, a hollow spindle having an annular flange about midway of its ends, cap members fitted on the end portions of the spindle, tubular casings held between the flange and cap members, packing-rings arranged at the end of'the casings to torm fluidproof joints, the upper of the casings constitutin an oil-reservoir, and the lower a feedcham er, there being a port extending through the Wall of the lower portion of the chamber'for the outfiowof oil from the lower chamber; and a pair of ports extending through the flan e, a valve arranged in one of said ports, an a justing device connected to said. valve, a second 1nan11all ope1-able valve arranged in the second port, there being an air-port leading from the outer edge of the flange to the lower chamber, a valve in said port, a couplin' "-collar screwed to the lower 2a.:

of the spin le, the lower end of said spindie being shaped to form a valve-seat, a $110 tionmp'en'edrvalve adapted to said seat, a-

valve-rodextendin through the spindle, & spring arranged at t e upper end of the spin dle and tending to hold the valve closed, a look-nut at the upper threaded end of the spindle, a cap covermg the end 0f the. sfn'ndle, and 'concealmg the spring, a removab e plug screwed in the upper cap, and a. coupling nip vsmegma ple extending from the upper cap fexemmec 10 tion to a main supply-reservoin In testimony that I claim the fareggmg as my own I have hereto affixedmy signat'lme. in the presence of two witnesses. LESTER DARIUS PICKETT Witness'es:

C. E. Dune, FRA K S. APPLEMAN 

